Which source of energy causes most of the water evaporation on earth’s surface?
a. windb. solarc. gravityd. electrical?

I think it's B. Solar. My reason why is because first of all for evaporation to happen, water must reach it's boiling point or it's maximum heated temperature, which is 100 degrees Celsius. The cycle of evaporation is a liquid turning it to a gas, so it's a phase change happening right there.

Igonna be honest i dunno that one srry